Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along the finger with subtle drama. This semi-set engagement ring frame in 10K yellow gold awaits your choice of a 7 x 3.5 mm marquise center, designed to cradle the stone securely while maintaining a low profile for everyday grace.

Crafted in Williamsburg, the band’s gentle curve and precise setting ensure comfort fit and durability, ideal for daily wear without catching or lifting. The yellow gold’s warm glow complements the marquise’s distinctive shape, while delicate accent details add refined texture without overwhelming the design.

Each ring foundation is finished with meticulous hand inspection, reflecting Haejin Jewelry’s commitment to craftsmanship and subtle engineering. The lab-grown diamond option offers a clear, sustainable choice, aligning with modern ethical values.

Its streamlined silhouette suits slender to medium finger shapes, pairing effortlessly with stackable bands or worn solo for a statement that balances elegance with practicality. The low-profile setting slips easily under gloves or sleeves, making it a versatile companion for all seasons.

Should you need resizing or prefer a custom accent arrangement, our Brooklyn studio offers personalized consultations to ensure your ring fits perfectly and reflects your vision.

Explore this semi-set marquise engagement ring in our Williamsburg studio or begin your custom design journey online—where expert guidance meets ethical craftsmanship in the heart of Brooklyn.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert design with responsible sourcing and local artisan skill.

See how your design comes to life with our Ring Design Online, or start a truly custom piece from scratch in our Williamsburg studio.

Explore our Guides & Education and Stories & Lifestyle for diamond education, care tips, and real studio stories.